英语词汇infrared LED简单造句、意思、用法及例句-英语例句辞典

单词	infrared LED
例句	原声例句 TED-Ed（视频版） This can be accounted for with a second infrared wavelength LED. 这可以用第二个红外波长 LED 来解决。科技智慧坊 First is an infrared LED that emits light and a lens that focuses it. 首先是发光的红外 LED 和聚焦光的镜头。
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